EP2273213A2 - Fuss für Erdwärmesonde - Google Patents

Fuss für Erdwärmesonde Download PDF

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Publication number
EP2273213A2
EP2273213A2 EP10168102A EP10168102A EP2273213A2 EP 2273213 A2 EP2273213 A2 EP 2273213A2 EP 10168102 A EP10168102 A EP 10168102A EP 10168102 A EP10168102 A EP 10168102A EP 2273213 A2 EP2273213 A2 EP 2273213A2
Authority
EP
European Patent Office
Prior art keywords
tubular portion
heat transfer
transfer fluid
connecting device
opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP10168102A
Other languages
English (en)
French (fr)
Inventor
Philippe Vives
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sotra-Seperef
Original Assignee
Sotra-Seperef
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sotra-Seperef filed Critical Sotra-Seperef
Publication of EP2273213A2 publication Critical patent/EP2273213A2/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
    • F24T10/00—Geothermal collectors
    • F24T10/10—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
    • F24T10/13—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes
    • F24T10/15—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes using bent tubes; using tubes assembled with connectors or with return headers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/10—Geothermal energy

Definitions

  • the present invention relates to a connecting device of supply lines and heat transfer fluid return of a geothermal probe, and a geothermal probe comprising such a connecting device.
  • a geothermal probe comprises, in known manner, a heat transfer fluid supply line and a heat transfer fluid return pipe arranged vertically in a borehole several tens of meters deep.
  • the heat transfer fluid supply and return lines are connected at the bottom by a connection device, generally in U, allowing coolant flow from the supply line to the return line.
  • the pipes are connected to pipes arranged to connect the pipes to a heat pump installed in a technical room of a building.
  • the operating principle of such a geothermal probe is to capture calories stored in the ground via the heat transfer fluid supply and return lines which constitute vertical heat exchangers, and to transfer them to the pump. heat that extracts these calories from the heat transfer fluid and restores them to a heating circuit of the building.
  • the heat transfer fluid supply and return pipes, the heat pump and the pipes connecting them form a closed circuit in which the coolant circulates.
  • a disadvantage of such a closed circuit lies in the fact that any particles and impurities suspended in the coolant are likely to be deposited on the constituent elements of the heat pump, which can affect the performance or the operation of the heat pump.
  • the document WO 94/18510 discloses a connecting device of supply and heat transfer fluid pipes of a geothermal probe, comprising a first substantially straight tubular portion having a first end intended to be connected to a coolant supply pipe and a second closed end, and a second substantially straight tubular portion having a first end to be connected to a coolant return line and a second open end opening into the first tubular portion upstream of the second closed end thereof.
  • Such connection device does not protect the heat pump against risks of malfunction due to the circulation of particles and impurities suspended in the heat transfer fluid.
  • the heat transfer fluid from the latter causes the recirculation of particles and impurities optionally deposited at the bottom of the first tubular portion.
  • the present invention aims to remedy this disadvantage.
  • the technical problem underlying the invention therefore consists in providing a device for connecting supply and return lines of heat transfer fluid of a geothermal probe which is of simple and compact structure, while protecting the heat pump against risks of malfunction due to the circulation of particles and impurities suspended in the coolant.
  • the invention relates to a connecting device for supply and return lines for heat transfer fluid of a geothermal probe, the device comprising a first substantially straight tubular portion having a first end intended to be connected to a pipe. heat transfer fluid return and a second closed end, and a second substantially straight tubular portion having a first end to be connected to a heat transfer fluid supply line and a second end, the second tubular portion comprising, at its second end, an opening opening into the first tubular portion upstream of the second closed end thereof, characterized in that the second end of the second tubular portion is closed, and in that the opening is formed in the side wall of the second tubular portion.
  • the portion of the first tubular portion extending beyond the second end of the second tubular portion forms a reservoir promoting the settling and stagnation of the particles and impurities suspended in the coolant.
  • the particles and impurities decanted in the tank formed by the connecting device are no longer likely to go up to the heat pump, and thus to adversely affect the efficiency or even the operation of the latter.
  • the fact that the second end of the second tubular portion is closed makes it possible to generate a significant loss of pressure which has the effect of reducing the speed of the coolant coming from the heat transfer fluid supply line and passing through the opening in the side wall of the second tubular portion.
  • These provisions make it possible to reduce the speed of the coolant at the top of the tank delimited by the connecting device, which prevents recirculation of the particles and impurities deposited at the bottom of the tank.
  • the first and second tubular portions are inclined with respect to each other.
  • connection device is monobloc. These provisions make it possible to limit the risks of leakage at the connection device.
  • the connecting device is made of thermoplastic material.
  • the connecting device comprises a tab formed at the closed end of the first tubular portion, the tab preferably having at least one through opening.
  • the present invention also relates to a geothermal probe comprising a heat transfer fluid supply pipe and a heat transfer fluid return pipe, characterized in that it further comprises a connection device according to the invention, the first end of the first tubular portion being connected to the heat transfer fluid return line and the first end of the second tubular portion being connected to the heat transfer fluid supply line.
  • FIGS. 1 and 2 represent a connection device 2 of supply lines and heat transfer fluid return of a geothermal probe.
  • a connecting device 2 is commonly called "probe foot”.
  • the connecting device 2 is advantageously monobloc, and is preferably made of thermoplastic material, for example polyethylene.
  • the connecting device 2 comprises a first substantially rectilinear tubular portion 3 and a substantially straight tubular second portion 4, the first and second tubular portions being inclined with respect to each other and extending in the same plane.
  • the connecting device 2 thus has substantially the shape of a V.
  • the first tubular portion 3 has a first end 5 intended to be connected to a coolant return line and a second closed end 6.
  • the second tubular portion 4 has a first end 7 intended to be connected to a heat transfer fluid supply line and a second closed end 8.
  • the second tubular portion 4 comprises an opening 9 formed in its side wall at its second end 8, said opening 9 opening into the first tubular portion 3 upstream of the second closed end 6 of the latter.
  • the connecting device 2 further comprises a tab 11 formed at the closed end 6 of the first tubular portion 3, the tab 11 extending in the extension of the first and second lines 3, 4.
  • the tab 11 comprises two through openings 12 arranged to allow the attachment of a protective device designed to protect the connection device during the installation of the geothermal probe in the bore avoiding contact between the connecting device and the wall defining the borehole.
  • connection device not limited to the sole embodiment of this connection device, described above as for example, it encompasses all the variants.
  • the tubular portions 3 and 4 could be connected respectively to a supply line and to a fluid return line, without departing from the scope of the invention.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
EP10168102A 2009-07-02 2010-07-01 Fuss für Erdwärmesonde Withdrawn EP2273213A2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0954530A FR2947620B1 (fr) 2009-07-02 2009-07-02 Pied pour sonde de geothermie

Publications (1)

Publication Number Publication Date
EP2273213A2 true EP2273213A2 (de) 2011-01-12

Family

ID=42035912

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10168102A Withdrawn EP2273213A2 (de) 2009-07-02 2010-07-01 Fuss für Erdwärmesonde

Country Status (2)

Country Link
EP (1) EP2273213A2 (de)
FR (1) FR2947620B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012159761A1 (fr) 2011-05-25 2012-11-29 S.A. Ryb Pied de sonde geothermique et procede de mise en place
EP2913607A3 (de) * 2014-02-27 2016-01-06 Franz-Xaver Schuster Erdwärmesondenfuß, Erdwärmerohr und Erdwärmesonde

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994018510A1 (en) 1993-02-08 1994-08-18 Climate Master, Inc. Ground source heat pump system comprising modular subterranean heat exchange units with multiple parallel secondary conduits

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH687268A5 (de) * 1993-06-09 1996-10-31 Haka Ag Fabrik Fur Kunststoff Sondenfuss fuer eine Erdsonde.
US6860320B2 (en) * 1995-09-12 2005-03-01 Enlink Geoenergy Services, Inc. Bottom member and heat loops
AT505104B1 (de) * 2006-12-21 2009-01-15 Hafner Gernot Sondenkopf einer erdwärmesonde

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994018510A1 (en) 1993-02-08 1994-08-18 Climate Master, Inc. Ground source heat pump system comprising modular subterranean heat exchange units with multiple parallel secondary conduits

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012159761A1 (fr) 2011-05-25 2012-11-29 S.A. Ryb Pied de sonde geothermique et procede de mise en place
EP2913607A3 (de) * 2014-02-27 2016-01-06 Franz-Xaver Schuster Erdwärmesondenfuß, Erdwärmerohr und Erdwärmesonde
EP3106778A1 (de) * 2014-02-27 2016-12-21 G.H.P.- e.K. Geothermie- Handel- und Produktion e.k. Erdwärmerohr und erdwärmesonde

Also Published As

Publication number Publication date
FR2947620B1 (fr) 2012-12-21
FR2947620A1 (fr) 2011-01-07

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